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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import copy | 5 import copy |
6 import os | 6 import os |
7 import sys | 7 import sys |
8 | 8 |
9 import json_parse | 9 import json_parse |
10 import schema_util | 10 import schema_util |
11 | 11 |
12 def DeleteNocompileNodes(item): | 12 def DeleteNodes(item, delete_key): |
13 def HasNocompile(thing): | 13 """Deletes the given nodes in item, recursively, that have |delete_key| as |
14 return json_parse.IsDict(thing) and thing.get('nocompile', False) | 14 an attribute. |
| 15 """ |
| 16 def HasKey(thing): |
| 17 return json_parse.IsDict(thing) and thing.get(delete_key, False) |
15 | 18 |
16 if json_parse.IsDict(item): | 19 if json_parse.IsDict(item): |
17 toDelete = [] | 20 toDelete = [] |
18 for key, value in item.items(): | 21 for key, value in item.items(): |
19 if HasNocompile(value): | 22 if HasKey(value): |
20 toDelete.append(key) | 23 toDelete.append(key) |
21 else: | 24 else: |
22 DeleteNocompileNodes(value) | 25 DeleteNodes(value, delete_key) |
23 for key in toDelete: | 26 for key in toDelete: |
24 del item[key] | 27 del item[key] |
25 elif type(item) == list: | 28 elif type(item) == list: |
26 item[:] = [DeleteNocompileNodes(thing) | 29 item[:] = [DeleteNodes(thing, delete_key) |
27 for thing in item if not HasNocompile(thing)] | 30 for thing in item if not HasKey(thing)] |
28 | 31 |
29 return item | 32 return item |
30 | 33 |
31 def Load(filename): | 34 def Load(filename): |
32 with open(filename, 'r') as handle: | 35 with open(filename, 'r') as handle: |
33 schemas = json_parse.Parse(handle.read()) | 36 schemas = json_parse.Parse(handle.read()) |
34 return schemas | 37 return schemas |
35 | 38 |
36 # A dictionary mapping |filename| to the object resulting from loading the JSON | 39 # A dictionary mapping |filename| to the object resulting from loading the JSON |
37 # at |filename|. | 40 # at |filename|. |
38 _cache = {} | 41 _cache = {} |
39 | 42 |
40 def CachedLoad(filename): | 43 def CachedLoad(filename): |
41 """Equivalent to Load(filename), but caches results for subsequent calls""" | 44 """Equivalent to Load(filename), but caches results for subsequent calls""" |
42 if filename not in _cache: | 45 if filename not in _cache: |
43 _cache[filename] = Load(filename) | 46 _cache[filename] = Load(filename) |
44 # Return a copy of the object so that any changes a caller makes won't affect | 47 # Return a copy of the object so that any changes a caller makes won't affect |
45 # the next caller. | 48 # the next caller. |
46 return copy.deepcopy(_cache[filename]) | 49 return copy.deepcopy(_cache[filename]) |
| 50 |
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